chemist prepared an aquenous solution using solid Magnesium hydroxide Mg(OH)2 and water at 25.0 C. Answer the following questions. The density of this solution was measured to be 1.10 g/mL. (useful information, kf= 1.86 C/m, kb=0.512 C/m) a. Calculate the mass of h2o and mass of mg(oh)2 in grams require to make 180.g of 0.140m Mg(OH)2 solution

Q: Bromine (Br₂) has a melting point of 266 K and a boiling point of 331 K. Which of the following…

A: Since  melting point is 266K means at 300k compound is in melted (liquid) state. So figure 1, 3 is…

Q: Explain the measuring implications of Heisenberg's uncertainty principle.

A: In the given question, it is asked to explain the measuring implications of Heisenberg's uncertainty…

Q: For the following compounds, write the oxidation state and electron configuration of each individual…

A: Here we have to write the oxidation numbers of all atoms in the compounds and their electron…

Q: What mass of carbon dioxide is produced upon the complete combustion of 23.7 L of propane (the…

A:

Q: Why is there a need to adjust the acid concentration of Group I cations before saturation with H₂S?…

A: A question based on qualitative analysis of cations that is to be accomplished.

Q: Calculate the mass of precipitate formed when 35.0 mL of a 0.155 M NaBr solution is added to 25.5 mL…

A: Given, For NaBr solution Concentration of NaBr solution = 0.155 M = 0.155 mol/L Volume of NaBr…

Q: kg, 3% by masc 10.) What is the amount in grams of H₂0₂ needed to make a H₂02 solution?

A: we have to calculate the mass of H2O2 needed to prepare the solution

Q: Which of the following solids will have the lowest melting point? a. H2O(s) b. Ne(s) c. Na(s) d.…

A: Melting point: Melting point is the temperature at which a given solid material changes from a solid…

Q: Suppose a small sample of pure X is held at -90. °C and 7.7 atm. What will be the state of the…

A: From the given graph,  pressure(in atm)  goes along y-axis and temperature(in K) along x-axis . The…

Q: For each of the following balanced chemical equations, calculate how many grams of the products…

A:

Q: Draw the product of the reaction shown below. Ignore inorganic byproducts. Na2Cr₂O7 Acetone, H₂SO4…

A: -> Na2Cr2O7/Acetone,H2SO4 is oxidizing agent which can oxidize alcohol to carboxylic acid.

Q: 2. Transfer 1 g of powdered sulfur and 0.5 g iron filings into a mortar and pestle and grind…

A: Here we 0.5 g of Iron and 1g of sulphur filling are evenly mixed and heated ,then allowed to cool .…

Q: each of the following reactions, identify the oxidizing agent and the reducing agent. Mg (s) + 2HCl…

A: A reducing agent is a substance which can be oxidized by loosing some of its electrons.   A…

Q: Liquid hexane (CH, (CH₂) CH,) will react with gaseous oxygen (0₂) to produce gaseous carbon dioxide…

A:

Q: 9.) How many grams of H₂0 must be used to dissolve loog of sucrose (C12H₂2011) to prepare a 0.020…

A: Recall the data, mass of sucrose=100 g molar mass of sucrose=342 g mol-1 mass of water=? molar mass…

Q: use the following data to determine the percent recovery of copper. report your answer with three…

A: percent recovery of copper = recovered mass of copperstarting mass of copper × 100

Q: two different students on two different days determine the density of urine using the exact same…

A: Density of a sample is determined by the ratio between mass of the sample to the volume of sample.…

Q: How many mi ut HNO3 concentrate are needed to prepare 250 ml of solution, the percent by volume is…

A:

Q: 4. magnesium + silver acetate → Molecular Reaction: Oxidation half reaction:

A:

Q: The data below are for water (H₂O) Boiling Point Melting point 0.0°C SH Capacity (liquid) SH…

A: Cooling curves are basically the plot of temperature versus time. It represents the change in phase…

Q: rounded yold Calloway 5th The data below are for water (1₂0) Boiling Point Melting point Heat of…

A: Cooling curve is the plot of temperature versus time The independent variable which is the variable…

Q: For the following reaction, 9.20 grams of ammonia are allowed to react with 13.6 grams of oxygen…

A:

Q: At 292.8 oC, the Kp for the reaction is 4.23⋅10-5:  3A+5B ↔ 1AB What is Keq?

A: From given Keq we can calculate Kp.

Q: 1) What is the pot of a 0. 0235 M HCl solution?

A: Given data  HCl = 0.0235 M find out POH

Q: 3. Draw the acid-base reaction products of sodium hydride and ethanol. Show using a curved arrow…

A:

Q: 4) A 0.750L aqueous solution contains qog of ethanol (C₂H5OH). Calculate the molar Concentration of…

A:

Q: 8.) What is the concentration of a solution with a volume of 9mL that contains 29 of iron (1)…

A: Weight of Iron(III)oxide = 2 g  Volume of the solution= 9 mL  We have to calculate the concentration…

Q: Chemistry A PBS at a 1x concnentration has 137 mM NaCl, 2.7 mM KCl, 8 mM Na2HPO4, and 2 mM KH2PO4.…

A: Since the buffer solution is 1x concentrated it is not diluted.  Hence we have to use the…

Q: Does the presence of a benzene ring or carboxylic acid functional group in a substance affect the…

A: General concepts of TLC analysis

Q: Determine the oxidation state for each of the elements below. The oxidation state of iron The…

A: Oxidation number: The covalent bond between the atoms of different electronegativity is polar. If we…

Q: what is the color rating for dichloromethane, ethanol, biphenyl, hexane, methyl orange, and…

A: Color rating are as-  Dichloromethane (red 1, blue 2, yellow 0, white  ) Ethanol (red 2, blue 3,…

Q: A first order reaction has a rate constant of 0.1546 min^-1. Calculate the half-life (in seconds) of…

A: Given information is, Given reaction is first order reaction.  Rate constant =k= 0.1546 min-1 Half…

Q: 1. How many MOLECULES of carbon dioxide are present in 2.11 moles of this compound ? molecules. 2.…

A:

Q: OmL to make a 1.50N solution of NaOH.

A: Molarity of solution is defined as number of moles of solute dissolved per litre of the solution.…

Q: Answer Question “d”

A:

Q: rounded The data below are for water (1₂0) Boiling Point Melting point Heat of SH Capacity (solid)…

A: Cooling curve are the plot of temperature versus time The independent variable which is the variable…

Q: MnO₂ + CrO3¯¯ → Mn + CrO4¯ CONTENT SHOULD BE THESE OXIDIZED REDUCED BASIC SOLUTION CHECKING

A: This is a redox reaction where reduction and oxidation occur simultaneously.

Q: 4.) Calculate the concentration (N) of arsenic acid (H₂A504) in a solution if 25mL of that solution…

A: Normality(N) is calculated by multiplying the molarity with the no. of equivalents. i.e.…

Q: Determine the volume of 0.205 MM KOHKOH solution required to neutralize each sample of sulfuric…

A:

Q: he following reaction, 4.76 grams of nitrogen gas are allowed to react with 4.93 grami ogen (g) +…

A: Given,  Mass of N2 = 4.76 g Mass of H2 = 4.93 g Molar mass of N2 = 28 g Molar mass of H2 = 2 g Molar…

Q: 9.) How many grams of H₂0 must be used to dissolve loog of sucrose (C₁2H₂2011) to prepare a 0.020…

A: Recall the data- Grams of sucrose=100 g molar mass of sucrose=342.3 gmol molar mass of water=18 gmol…

Q: 16- Lithium solid reacts with Nitrogen gas to form solid Lithium Nitride Li3N. In one experiment,…

A: Given that Solid Lithium metal reacts with nitrogen gas to form solid Lithium Nitride, Li3N. Mass of…

Q: p by step Enter each formula below into Canvas in the correct format: a) CaCl₂: b) Na2SO4: c)…

A: (a). Calcium Chloride (CaCl2)

Q: If a reaction involving a single reactant is first order with a rate conatsnt of 4.50 x 10^-2 s^-1,…

A: Here we are required to find the time needed for first order reaction to be 53% of initial…

Q: axial ? equatorial? ax/eq?

A: Stereochemistry is a branch of chemistry in which we deal with three dimensional arrangement of…

Q: How do you weigh hygroscopic solids? Give three examples of hygroscopic solids.

A: Hygroscopic property can be defined as the ability of a matter to absorb water from air. We have…

Q: Calculate the the following for a 0.425 M solution of a weak acid with Ka [H₂O*] = pH = [OH-] = H…

A:

Q: 5.) What volume in mL of a concentrated solution of NabH (6.0M) must be diluted to 200 mL to make a…

A:

Q: BALANCE REDOX REACTION (USE THE LONG METHOD WITH CHECKINGS) SO2 + O2 → SO3 CONTENT SHOULD BE THESE…

A: this is a redox reaction

Q: 3. A compound has the following MS & IR spectra. Propose a structure. Mass Spectrum Relative…

A: Mass spectra provides the information about molecular mass, molecular formula and the possible…